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While making changes to my own NC-400 based stereo amp, I make direct comparisons to my Pass Labs X-150.5, the 150.5 stays constant, hence I have a static reference for comparisons. Without the static reference, it would be more difficult to make accurate conclusions regarding any changes. Note, that the poster of this thread, compared stock NC-400 modules directly with his modded versions, rather than trying to compare by memory.
What I also wonder about, is why would any self declared objectivist think that THD measurements define amplifier performance?
It seems therer are quite a few folks on this thread who want very badly to believe that NC-400 based amplifiers are perfect in all regards - this is delusional. They are very good, and especially very good for the price of admission, but they are far from perfect.
I don't believe you can measure openness, detail, transparency, and holographic imaging by a measurement, only by the human ear.
but it does change the sound.
At least 17.5
Do all audiophiles a favor cab, never become an audio reviewer.
The funny thing is that usually a big increase in desired traits is really obvious to all listener, while we lack words for it consensus is pretty easy to achieve. In fact so much so that people read reviews of equipment and find the word of learned-to-trust reviewers to be as good as objective data.
No one said it doesn't change the sound. What has been said is that the change, without measurement, can not be said to be an improvement, only a change. A change some people might find agreeable, some not. Your preferences are not universal.
Cab: your statement is not true. Here is why: Take amplifier A (unmodded NC-400 amp) and amplifier B (identical NC-400, except with the cap mod described here). Now, listen to a cello playing in your listening room, and at the same time capture the playback at 24/192, DSD 128, or whatever you prefer.Now playback and compare the sound of the two amps, with the live cello sound as your reference. Whichever amp sounds closer to the real thing is better, not just different.
Ted: I really do not feel like I should comment further here. There is plenty of information on the Amenero USB interface at diyaudio.com for those who would like to learn more.Personally, I feel the USB interface is a critical part of any DAC where the primary playback is going to be from a computer/server source, and there are big differences in the performance of different USB interfaces.It sure would be nice if all Async USB interfaces were equal, but that is surely not the case. A USB interface can be a stumbling block for many manufacturers, especially smaller ones, who do not have the resources (computer engineers comfortable with high speed data design and programming) to develop and perfect their own interface. Even the popular XMOS chip requires quite a bit of specialized skills to be implemented well.
No, it can also mean that certain people have similar likes. Find a reviewer that has similar likes, and maybe you can learn to trust their opinion. Doesn't mean it applies to everyone. How many times have people read a review and scratched their heads after hearing the equipment? The fact that there are so many different makers of equipment means there are many differing opinions on what sounds "best". Look at all the differing opinions on rooms at audio shows. The only opinion that matters is your own. If it works for you, great. Just don't tell me it will work for me.
gotcha: you have no ideea how the cello really sounded as you were not in the room where the recordings (you use for testing) were done! And guess what, not all cellos sound the same, in case you compare it to the cello you might have in the room, as your (listening) room will color the sound of the cello in a different way that the recording room has done.And there's one more thing: picking up the cello with microphone A will sound different from picking it up with microphone B. Enter the recording engineer that processes the recording, changing the sound of the cello to his liking.So, what do you compare the sound of the cello from the recordings with, when you don't know how it really sounded originally?And if you try to compare it with the sound from the concert last week, may i ask do you compare the sound of the cello listened from the first row middle, seventh row middle or the sound of the cello where the microphones were placed?
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